what value of r must you use so that the meter will go to full scale when the current i is 70.0 ma ?

Answer:

Explanation:

mass, m = 500 kg

initial velocity, u = 36 km/h = 10 m/s

final velocity, v = 0

distance, s = 40 m

\(v^{2} = u^{2} + 2as\)

\(0^{2} = 10 ^{2} +\) 2 × a × 40

0 = 100 + 80 a

- 80a = 100 - 0

-80a = 100

a = -100 / 80

a = -1.25 m/\(s^{2}\)

force, f = ?

mass = 500 kg

acceleration = -1.25 m/s^2

f = ma

= 500 × -1.25

= -625 N

Hope this helps

plz mark as brainliest!!!!!!!

The highest energy is the light with a short wavelength. Red has the least value since it has the shorter wavelengths of all visible light. Violet light has the shortest wavelength of all visible light, giving it the most energy. The longest wavelength and lowest energy are found in radio waves.

The correct answer is B-elastic potential energy to kinetic energy.

When the spring gun is cocked, it stores elastic potential energy. Upon firing the dart, this stored energy transforms into kinetic energy, propelling the dart towards the target on the ceiling.

Elastic potential energy is energy stored as a result of applying a force to deform an elastic object. The energy is stored until the force is removed and the object springs back to its original shape, doing work in the process.

The deformation could involve compressing, stretching or twisting the object.

Many objects are designed specifically to store elastic potential energy, for example:

Learn more about elastic potential energy at

https://brainly.com/question/14687790

#SPJ11

Answer:

water

Explanation:

water is a compound

Answer:

7 meters, 2.8 meters

Explanation:

work done (nm) = force (n) * distance (m)

140= 20 * m

140/20 = m

m=7 meters

140= 50 * m

140/50 = m

m= 2.8 meters

If there are doubts about the relationship between variables, plotting the data on a different scale will reveal how they are proportional.

In order to construct a graph of terminal velocity vs. drag force using a Cartesian coordinate system, follow the instructions below:

Step 1: Using a spreadsheet program, enter the values for drag force and terminal velocity.

Step 2: Create an XY scatter plot with drag force on the horizontal axis and terminal velocity on the vertical axis.

Step 3: After that, add error bars to each data point on the graph's vertical axis to account for the standard error.

Step 4: Then, draw a smooth line through the graph's data points, keeping it as close as possible to each data point and within the error bars for any data point that does not fall on the smooth line.

Step 5: Check to see if the graph is linear. If the graph is linear, it means that the relationship between the two variables is proportional.

For similar question on variables.

https://brainly.com/question/112703

#SPJ11

The image is real and is found at a distance of 33.33cm.

The term lens is used to describe any refracting surface. We know that a lens could be concave or convex in nature.  Given that fact, we are to find the nature of the image that is formed by the convex lens.

Also;

1/f = 1/u + 1/v

1/v = 1/f - 1/u

f = focal length

u = object distance

v = image distance

1/v = 1/25 - 1/85

1/v = 0.04 - 0.001

v = 33.33cm

The image is real and is found at a distance of 33.33cm.

Learn ore about image distance:https://brainly.com/question/12629638

#SPJ1

If a real object is placed inside the focal point of a diverging lens, the image is virtual, right side up, and reduced. Negative focal lengths correspond to c. concave mirrors.

A diverging lens is a type of lens that is thicker at the edges than at the center. They're also referred to as concave lenses. These lenses diverge light rays that pass through them rather than concentrating them, as convex lenses do. The image created by a diverging lens is virtual, upright, and smaller than the object

If a real object is placed inside the focal point of a diverging lens, the image is virtual, right side up, and reduced, this happens because light rays diverge after passing through a diverging lens. Negative focal lengths correspond to concave mirrors. When an object is located in front of a concave mirror, the focal length is negative. A concave mirror is one that curves inward, like the inside of a sphere. They're also known as converging mirrors. If a real object is placed inside the focal point of a diverging lens, the image is virtual, right side up, and reduced. Negative focal lengths correspond to c. concave mirrors.

Learn more about diverging lens at:

https://brainly.com/question/2484911

#SPJ11

Answer:

lathe

perfectly symmetrical

Answer: A lathe is used to turn wood . It rotates and carves wood to produce a perfectly symmetrical form .

First one is lathe .

Second one is perfectly symmetrical .

Explanation: I just took the test on Plato and had 100%

The time it takes to charge a battery using a fast charger with 400v that operates at 100 a g will depend on the capacity of the battery being charged. Usually up to 80% will take 30 minutes.

Generally, fast chargers can charge a battery to 80% capacity in about 30 minutes, but it may take longer to fully charge the battery. It's important to check the specifications of the battery and charger being used to determine the estimated charging time.

An apparatus that transforms chemical energy into electrical energy is a battery. Typically, it is made up of one or more electrochemical cells, which can store energy in the form of chemicals and then release it as electrical energy when necessary.

Batteries are frequently found in a wide range of electronic gadgets, including cell phones, computers, portable radios, flashlights, and electric vehicles. As a portable source of electrical energy, they can also be used in power tools, medical equipment, and other applications.

Learn more about battery here:

https://brainly.com/question/25032521

#SPJ11

Answer:

hhuuufuhrhuuuryheu7uhhehfu

Answer:

Heat

Explanation:

Because chemical energy is stored, it is a form of potential energy. When a chemical reaction takes place, the stored chemical energy is released. Heat is often produced as a by-product of a chemical reaction – this is called an exothermic reaction.

Hope this helped.

Explanation:

Answer Should be B.

Its in Form of Heat.

Answer:

Hi... Potential energy is converted to kinetic energy and kinetic energy is converted to potential energy

Force(F) = 350 N

Work (W)= 0 J

Apply the formula:

Work = Force x Distance

Isolate distance(d)

Distance = Work/ Force

d = W/F = 0 /350 = 0 m

The distance that the object traveled is 0 (zero)

Answer:

\(n = 1.563x {10}^{20} \)

In the very early universe, we think that tiny quantum ripples should have been present due to the inflationary theory of the universe.

The inflationary theory is a model of the universe’s early evolution that proposes that the universe went through an extremely fast expansion phase during its first few moments, resulting in a rapid growth in size.

The inflationary theory implies that tiny quantum ripples should have been present in the very early universe.

These ripples, sometimes known as quantum fluctuations, are minor fluctuations in the universe’s fabric that exist on a quantum scale.

They are fluctuations in the density of matter and energy, which are thought to have caused the seeds of cosmic structures such as galaxies and clusters of galaxies to form.

The reason these quantum ripples should have existed in the early universe is due to the quantum nature of matter and radiation.

According to quantum mechanics, particles and radiation can exist in multiple states or locations at the same time, with each state or location having a probability associated with it.

Quantum fluctuations result from these multiple states interacting with one another, which results in slight variations in the distribution of matter and energy.

These variations were later amplified by cosmic inflation, resulting in the creation of the observed large-scale structure in the universe.

Know more about universe here:

https://brainly.com/question/28365362

#SPJ11

Answer:

increasing the masses of the objects and increasing the distance between the objects

Answer: 6V

Explanation:

Answer:

B

Explanation:

because. it reduces the distance between the earth

The emission spectrum of an atom corresponds to the wavelengths of light that are emitted when the electrons in the atom drop from higher energy levels to lower energy levels.

The absorption spectrum of an atom corresponds to the wavelengths of light that are absorbed when the electrons in the atom are excited from lower energy levels to higher energy levels.
Since the simple atom in question has only two absorption lines, at 290nm and 680nm, it means that the electrons in the atom can only be excited to two higher energy levels. Therefore, the emission spectrum of the atom will only have two lines as well, corresponding to the transitions from the higher energy levels back down to the lower energy levels.
The wavelength of the line in the emission spectrum that does not appear in the absorption spectrum can be found by looking for the energy level transition that is not allowed in the absorption spectrum. In this case, there are only two possible transitions, and they are both allowed in the absorption spectrum. Therefore, there is no line in the emission spectrum that does not appear in the absorption spectrum.

to know more about wavelengths visit :-

https://brainly.com/question/28466888

#SPJ11

Answer:

Explanation:

If the hippo is laying on the rock, I'm assuming that there is no movement going on at all, in either the hippo or the rock. If no movement occurs, there is no work being done.

If the acceleration is constant, the velocity changes at the same rate or said to be uniform.

The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

The formula of the acceleration is;

\(\rm a= \frac{v-u}{t} \\\\\)

When a high-speed train accelerates at a consistent rate in a straight path, the change in velocity is uniform.

Hence, if the acceleration is constant, the velocity changes at the same rate.

To learn more about acceleration, refer to the link;

https://brainly.com/question/2437624

#SPJ1

Answer:

Mechanical waves

Longitudinal waves

Explanation:

Sound waves are mechanical waves because they require a medium to transport their energy from one place to another.

Sound waves are longitudinal waves because the vibration of sound is transported parallel to the direction that the sound waves move.

Answer:

c

Explanation:

The electric potential energy of the charge is divided by 2.

To find the electric potential energy, the values given from the source of an electric field changes from 3 mm to 6 mm.

            The electric potential energy is the energy that is needed to move a charge against the electric field.

The energy can be calculated as Work and these energy can be calculated as a whole not only the charges.

Formula for electric potential energy,

         U = KQ²/r

where,

K is the constant, k =  9 × 10⁹

Substituting the values of q as the charges and then the distance can be,

U = KQ² / 3   and U = KQ² / 6

So that, the values can be divided by 2.

The unit of electric potential energy is Joule.

The distance can be from r to ∞.

Hence, Option B is the correct answer.

Learn more about electric potential energy,

https://brainly.com/question/12645463

#SPJ5

Answer:

1 & 2

Explanation:

Answer:

Z=49,A=113

N=64,Z=49

Explanation:

A light-year is a unit of distance, specifically the distance that light travels in one year.

Light travels at a speed of approximately 299,792 kilometers per second (or about 186,282 miles per second) in a vacuum. Therefore, to determine which planet is 20 light-years away from Earth, we need to identify a planet located at a distance of approximately 20 times this speed of light.

As of my knowledge cutoff in September 2021, no known exoplanets have been directly observed and confirmed to be located exactly 20 light-years away from Earth. However, there are numerous exoplanets that have been discovered within a range of distances from Earth.

Some notable exoplanets discovered within approximately 20 light-years of Earth include:

know more about light-year here:

https://brainly.com/question/1224192

#SPJ8

The rotational inertia of a thin cylindrical shell of mass M, radius R, and length L about its central axis (X - X') is MR²/2.

The rotational inertia, also known as the moment of inertia, is a property that quantifies an object's resistance to rotational motion. For a thin cylindrical shell, the rotational inertia can be calculated based on its mass, radius, and length.

The formula for the rotational inertia of a thin cylindrical shell is given by I = MR²/2, where M represents the mass of the shell and R represents its radius.

In this case, since we are considering the rotational inertia about the central axis (X - X'), the length of the cylinder (L) does not come into play. The only relevant parameters are the mass (M) and radius (R).

Applying the formula, the rotational inertia of the thin cylindrical shell is MR²/2. Therefore, the correct answer is A. MR²/2.

To know more about inertia, refer here:

https://brainly.com/question/3268780#

#SPJ4

From what I have seen, you do not take your step sis out of the washing machine, you ask her if she has games on her phone and play mine craft like a god obv.